Tobacco smoking pipe



Patented Sept. 15, 1953 UNITED STATES FATENT OFFICE 2 Claims.

My invention relates to certain new and useful improvements in tobacco-smoking pipes and method of making the same and has for its principal objects to provide a pipe with means which causes the moisture in the bottom of the pipe bowl to be consumed thus eliminating the wet soggy heel and offensive odor so prevalent in all pipes which necessitates constant and troublesome cleaning operations.

Another object of my invention is to provide a pipe which will cake evenly throughout the inner walls of the bowl hence offering a dry mild smoking pipe, minus filtering devices and traps often used in pipes.

Still another object of my invention is to provide a pipe or such construction that the bottom of the bowl can be caked to an unusual thickness without objectionable results.

With the foregoing and other objects in view, my invention consists in certain novel features that will be hereinafter more fully described and claimed and illustrated in the accompanying drawings, in which:

Figure l is a vertical sectional view taken lengthwise through the center of a pipe constructed in accordance with my invention;

Figure 2 is an enlarged fragmentary sectional view of the bowl of my improved pipe; and

Figure 3 is a section on the line 3--3 of Figure 2.

Referring by numerals to the accompanying drawings which illustrate a preferred embodiment of my invention, 5 denotes a tobacco smoking pipe comprising a tubular bowl portion 6. having an integral stem 1, to the outer end of which is detachably fixed a conventional mouthpiece or bit 8. Both the bowl and stem are preferably of briar so that the vapors may be absorbed thereby while the mouthpiece 8 is of any suitable material.

A substantially vertically disposed cylindrical tobacco chamber or cavity 9 formed in the bowl 6, communicates at its lower end with the inner end of a smoke passage l0, extending longitudinally through the stem 1. The wall of chamber 9 is slightly tapered or contracted in a downwardly direction for a purpose presently described. The passage or bore I communicates at its outer end with a second and aligned smoke passage ll formed in the mouthpiece or bit 8, the purpose of these smoke passages being obvious, require no further description. The wall of the chamber 9 is formed with a horizontal groove I2 on its inside and a shoulder well above the lower end of the chamber 9 and of course also slightly above the top of the smoke passage l0, previously referred to. This groove I2 is adapted to support therein a metal lining cup or evaporator [3, the peripheral edge of which is formed with an outwardly extending flange or lip M of a size and configuration to fit snugly within the groove l2 and to seat upon the shoulder l5, forming the bottom wall of the groove which extends outwardly in chamber 9. In addition to providing secure anchorage for the lining cup it, the shoulder i5 helps to maintain a smooth surface in the. walls of chamber 9 during the formation of cake Is, as presently described. The member 13 is preferably made from thin flexible material such as aluminum, capable of absorbing heat generated as the tobacco is being consumed in the chamber 9, when the pipe is in use. I'he light weight of the metal employed also permits of the said member l3 being manipulated to conform to the contour of the wall of the tobacco chamber 9, by Well known metal spinning or other suitable methods. In this connection it will be noted that a small tubular protuberance or stem ii is formed on one side of" the cup l3 and the outermost edge of said cup stem lies within a vertical plane-which intersects the side wall of said bowl. This is preferably accomplished by cutting a hole I6 through the inner wall of the cup l3 and then spreading the displaced metal out-- wardly. It will also be noted, that the inner end of the smoke passage 86 is formed with a cut-out or recess 20 to accommodate the displaced metal, approximately of an inch thick, which is spread on the inside of the hole 55. Thus the passage It] should present a smooth surface for the passage of a pipe cleaner or cleaning rod, as the portion IQ of the cake 18 will keep forming at I6 and I1 and must be scraped away to allow a free moving draft. Protuberance l? which is adapted to be snugly seated in the cutout or recess 20 also materially adds to the anchorage provided for cup I3 by the groove !2 and lip Id.

In practice, the inside of the chamber 9 will first be machined to provide the close fitting groove l2, shoulder 15 and smooth interior. The metal cup I3, of slightly smaller diameter than the tapered interior of chamber 9, at the level of the top of the groove 12, is then provided with the lip M, to permit of the whole being dropped into the bowl portion 6, where it is spread to fit tightly into the bottom of chamber 9 with the lip in place in groove l2 and on shoulder 15, as previously explained. Thereafter the small hole 16 is punched through the metal leading into the smoke passage 10 of the stem 1, and then a conventional metal spinning method will be employed to spread the metal on the inside of the hole l6, as indicated at 11. Thus the fit of the parts just described will be such that the presence of objectionable pockets or air space between the metal and briar will be avoided.

It will be noted that the light weight metal evaporator I3, absorbs the heat quickly from the smoke passing downwardly to hole l6 and passages IO and H, and holds this absorbed heat at the bottom of the pipe bowl 6. Consequently when the moisture runs down the stem and enters into evaporator [3, the hot metal evaporates the moisture similar to the dropping of water on a hot stove. Furthermore the heat is not increased in the pipe bowl but merely concentrates in the body of the metallic cup l3 at the bottom of the bowl, where the drying effect of the heat on the usual wet sour heel, customarily developed in prior pipes, is greatest.

The evaporation of the moisture in the pipe bowl 6, and particularly in the bottom thereof will result in the formation of the cake [8, evenly over the cavity surface of the side wall of the bowl of the pipe, above the groove [2 and shoulder l and to eventually form a continuation of the cake spreading evenly over the inner face of the metal lining cup 13, as shown at 19, the thickness of the latter being much less than that of the cake is. The cup 13 prevents the formaticn of pockets or raised portions on the face of the cake formed in standard pipes and which necessitates the use of special cleaning tools to remove the same.

In this specification and in the claims, I refer to the pipe as being in the position shown in Figs. 1 and 2, namely the opening of the tobacco chamber facing directly upwardly (and not when the pipe is lying on its side) Having thus described my invention, what I claim is:

1. A tobacco pipe comprising a bowl and stem of wood so constituted that vapors may be absorbed thereby, said bowl having a side wall and a cavity, the bottom of the cavity having an opening at the base thereof, said stem having a bore in direct communication with the opening, a substantially semi-spherical cup of high heat retaining material positioned in said cavity and having a shape conforming substantially to the contour of the wall surface of the bottom of the bowl, said cup having a tubular stem extending outwardly from and coextensive and substantially in alignment with the bottom of the cup and bore of the bowl stem and extending outwardly from the base thereof and positioned in the bore of the stem and extending thereinto, and the outermost edge of said cup stem lying within a vertical plane which intersects the side wall of said bowl whereby the major portion of the wall surface of the bowl stem may be exposed to the passage of smoke generated in the cup and whereby the cup may absorb substantially entirely the heat generated in the cavity of the bowl as said heat is dissipated towards said bore.

2. A tobacco pipe comprising a bowl and stem of wood so constituted that vapors may be absorbed thereby, said bowl having a tapered cavity, the bottom of the cavity being substantially semi-spherical and having an opening at the base thereof, said stem having a straight bore in direct communication with the opening, said cavity having therein a substantially semi-spherical cup, said bowl having an annular groove radially a distance above the bottom of the cavity corresponding substantially to the radius of the cup, said cup having a flange positioned in the groove, said cup having a tubular stem having its bottom wall substantially flush with the bottom of the cup and extending outwardly from the cup base and positioned in the bore of the bowl stem, said tubular stem extending substantially to a point below and in line with the edge of the flange whereby the major portion of the wall surface of the bowl stem may be exposed to the passage of smoke generated in the cup and whereby the cup may absorb substantially entirely the heat generated in the cavity of the bowl as said heat is dissipated towards said bore.

ATWOOD M. TIMPE.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 45,916 Fickey Jan. 17, 1865 582,119 Foster May 4, 1897 714,903 Hinds Dec. 2, 1902 1,120,271 Buescher Dec. 8, 1914 1,202,944 Willis Oct. 31, 1916 1,627,605 Homan May 10, 1927 2,236,076 Silber Mar. 25, 1941 2,377,379 Saulnier June 5, 1945 2,494,268 Slutz Jan. 10, 1950 FOREIGN PATENTS Number Country Date 207,024 Great Britain Nov. 22, 1923 310,624 Great Britain May 2, 1929 

